So, i´m in a project that uses 4 motors for process automation. 1 Stepper motor, 12V, 100mA - I will use a EasyDriver to drive this (https://www.sparkfun.com/products/10267)1 DC motor with reduciton, 12V, low current (for this i have a lot of options of drivers)2 linear actuators (that are like DC motors too but with higher current), 12V, 3,5A -4A current (which dirver should i use?)

So, for the DC motor and the linear actuators is been a week that i´m looking for the right drivers. Mostly of the modules that i found was for like max 2A. One thing is that this machines will work for long times without stopping, so the drivers can´t have problems of getting too hot. I don´t want to project and build any circuit because i'm doing this to be a more final and replicable solution. Just want buy the drivers modules, connect, and program.

So, for the stepper and the low current motor i believe i will use 2 x L298N drivers.

For the the high current motors, i found this option: http://www.ebay.com/itm/2pcs-Arduino-240W-H-bridge-Motor-Driver-Module-SPI-TTL-CMOS-/301032501972?pt=LH_DefaultDomain_0&hash=item4616ef72d4 and i am really into this one. What do you think?

Other option woud be this: http://www.ebay.com/itm/KDQ3-Double-BTS7960B-43A-Motor-Driver-High-power-module-For-Arduino-SSY-2509-/301006914295?pt=LH_DefaultDomain_0&hash=item46156902f7